164 APPENDIX. 
always either imbricately disposed in estivation or arranged 
under some modification between that form and the plicate, but 
never valvate, the margins of each lobe being constantly free 
from those of the adjoining ones; they have generally 5 fertile 
epipetalous stamens, alternate with the lobes, with one of them 
sometimes a little shorter, 1 or 3 being very rarely sterile ; an- 
thers bilobed, with the lobes parallel, bursting longitudinally at 
the margin, one of these lobes being sometimes sterile ; the ova- 
rium 2-celled, rarely 5-locular, with ovules generally ascending, 
attached to fleshy placentz which are adnate to the dissepiments, 
as in Solanacee and Scrophulariacea, a simple style, and a bilobed 
stigma often of a very peculiar form ; the fruit is either baccate 
or capsular, the seeds generally reniform or compressed, with a 
lateral hilum ; the embryo, placed in albumen, is either straight 
or more or less curved, sometimes perispherically or spirally. 
They are plants with much the habit of the Solanaceae, with 
alternate, simple or geminate leaves, many of them possessed of 
powerfully medicinal properties. 
They offer the peculiarity, distinct from Serophulariacee, and 
similar to that of the Solanacee, in having the origin of the in- 
florescence always somewhat extra-axillary and lateral in regard 
to the insertion of the petiole. I propose to arrange them in the 
following manner :— 
ATROPINEE OR ATROPACER. 
Tribe 1. Nicotianee. Corolla with an elongated fun- ) 
nel-shaped tube, often more or less hypocrateri- 
form, with 5 nearly equal lobes, which are con- 
duplicate and then twisted in estivation, as in 
Convolvulus : stamens 5, one frequently shorter ; | Nicotiana, 
anthers 2-lobed, lobes almost free, medifixed, | Lehmannia, 
and without connective, bursting laterally along ' Sairanthus, 
the outer edge: capsule 2-locular with bifid | Polyclidia. 
valves, the margins of which are somewhat sep- 
ticidal, and slightly inflexed at base: seeds with 
a short terete embryo somewhat incurved or 
slightly arcuate. J 
Tribe 2. Daturee. Corolla with an elongated fun-) 
nel-shaped tube, having a 5-angular expanded 
border with a contorted complicated zstivation, 
as in the Nicotianee : 5 equal stamens; anthers 
hiro “rg Lc laterally adnate, dorsally | Datura, 
attached to a fleshy connective, and bursting }Ceratocaulis, 
longitudinally in front : fruit sub-baccate or cap- Srideiepsens 
sular, 2-celled above, 4-celled below, with the 
fleshy placente adnate to the middle of the dis- 
sepiment : seeds with a nearly annular curved 
terete embryo. J 
